Green’s Dictionary of Slang

faggot n.³

the penis.

1768		Gentleman’s Bottle-Companion 8: He quickly gain’d the cover’d way; / He batter’d the breach, but miss’d his reach, / His faggot too small could not fill up the ditch.
1788		‘The Gobbio’ Chap Book Songs 7: The Champion came as a champion should, / In two platoons he kneeled, stopped and stood, / He filled up the ditch with a faggot of strength, / And rammed his charge with a rammer of length.